not the perfect workaround for controlling iris with canon lenses.

dustylense

dustylense

Veteran
If you have canon L glass, you probably have a canon SLR.
So, if you have an adapter for your Af100 and want to stop down to 5.6 on your 85 1.2 do this.

Put the lens on your canon, set your preferred iris, then hold down the DOF preview button and while holding, unmount the lens. Your desired iris setting will remain were you set it. Mount on a adapter with no contacts and shoot away.

Not perfect, but it works.
 
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Hey, for those with $15,000 in L glass and with a cheap M43 adapter, until the birger comes along....Beats that piece of crap Kipon with it's aperture in the adapter which ends up vignetting your shot.
 
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It is a kludge; but it is a valid workaround that's good to know.

Other options for controlling light are generally preferred; but in a pinch this is the sort of trick that could save a shoot. Thanks for posting Dusty.

- Mikko
 
dustylense said:
Hey, for those with $15,000 in L glass and with a cheap M43 adapter, until the birger comes along....Beats that piece of crap Kipon with it's aperture in the adapter which ends up vignetting your shot.
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Well I certainly appreciate people sharing tips and tricks. The only thing I would say is, not sure everyone will agree with you on the Kipon "piece of crap" part.

Regards,

G.
 
This has been a known workaround since at least the 5DII came out a couple of years ago, without aperture control in the firmware. Could call it the set-n-twist.
 
ProAmateur said:
Well I certainly appreciate people sharing tips and tricks. The only thing I would say is, not sure everyone will agree with you on the Kipon "piece of crap" part.

Regards,

G.
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when you throw a $2300 lens on and it vignettes, I call it crap. But it works and is one solution.
 
The Kipon appears to be a low-hassle, low-quality workaround, the EOS thing appears to be a high-hassle, high-quality workaround. Again, if you've already got the glass, it's good to be sharing tips on both methods so that folks can figure out how to proceed. The Birger can't get here fast enough.
 
I agree Barry. Until then, we play with work arounds. But in photography and film, work arounds are common. Birger is the solution. I just have too much Eos glass that I'm not going to sell anytime soon.
 
dustylense said:
when you throw a $2300 lens on and it vignettes, I call it crap. But it works and is one solution.
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Well I don't have 15K in L glass but I do have about 10K, and I would just be curious which 2300 dollar L lens you were using? What where your shooting conditions, and what type of shot where you going for? ISO? ND filter setting? Focal length?

Obviously I know the Kipon can result in vignetting...I was just curious as to what, in the shooting situation, caused you to need to stop down the Kipon so much that it caused the vignette? Thanks.

Regards,

G.
 
I just interviewed a DP who filmed a major BBC drama with a Canon 5d2 and used Nikon glass...I am sorry to report but as a Canon man myself I have to hand it to Nikon, their 'N' glass is a tad sharper than our 'L' glass. I found this out myself when I swapped from a Nikon D3 to a Canon 5D2 only to be able to blog about the video part of the 5D2...SAD ! PS. I recently bought a Nikon 50mm f1.4 lens for my AF101 as my Kipon adapter has become unusable and Birger is taking too long.
 
We have been making the Canon EF to Micro 4/3 for a couple of months now and sold hundreds of them. The method mentioned in the first post is the way everyone has been doing it and it's a fudge but it works. If it didn't we wouldn't be selling any Canon EF to Micro 4/3 adapters.

We have had a look at what Kipon have done and made a prototype version ourselves. Much, much higher quality of course with a far superior 16 blade iris diaphragm. Yes, there's a little vignetting at one end but it works and does away with the EOS if the cameraman is in rush. Of course the diaphragm is not in it's optimum position ( inside the lens!)

The iris diaphragms we are using in testing are high quality and expensive, but you get what you pay for. If we do bring out a canon EF to Micro 4/3 with built in iris diaphragm it will be cheaper than the Birger but more expensive than the straight forward canon EF to Micro 4/3 we currently sell.

Would there be enough demand out there for this type of adapter? Of course you could always open up the diaphragm anyway and use the EOS to set aperture regardless.
 
ProAmateur said:
Well I don't have 15K in L glass but I do have about 10K, and I would just be curious which 2300 dollar L lens you were using? What where your shooting conditions, and what type of shot where you going for? ISO? ND filter setting? Focal length?

Obviously I know the Kipon can result in vignetting...I was just curious as to what, in the shooting situation, caused you to need to stop down the Kipon so much that it caused the vignette? Thanks.

Regards,

G.
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17mm TSE ($2300 right there alone), 24mmII tse, 85 1.2 just to name a few. 16-35LII 2.8, 70-200L 2.8 and lots more....I don't have the kippon, as I've seen reviews with vignetting. Just a standard eos to m43 until the birger is developed. I also have lot's of nikkor glass and some Leica R and M glass.
 
dustylense said:
17mm TSE ($2300 right there alone), 24mmII tse, 85 1.2 just to name a few. 16-35LII 2.8, 70-200L 2.8 and lots more....I don't have the kippon, as I've seen reviews with vignetting. Just a standard eos to m43 until the birger is developed. I also have lot's of nikkor glass and some Leica R and M glass.
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How are you using the 85mm 1.2L on the AF100 with any adapter whatsoever? Even if you shoot it wide open (or even use EOS to set aperture) how are you focusing it?

Regards,

G.
 
ProAmateur said:
How are you using the 85mm 1.2L on the AF100 with any adapter whatsoever? Even if you shoot it wide open (or even use EOS to set aperture) how are you focusing it?

Regards,

G.
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It can't be done (yet), I think he just wanted to list what he has in L and other glass.
 
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